Fabric cleaning

ABSTRACT

A device for spot cleaning a fabric with a liquid cleaning composition a device for spot cleaning a fabric with a liquid cleaning composition suitable for multiple uses, said device comprising more than one absorbent means for absorbing at least some of the applied composition from the fabric and holding means for storing the more than one absorbent means. In a method of use, the liquid cleaning composition is applied to the fabric with an applicator and some of the composition so applied is absorbed into the absorbent means.

TECHNICAL FIELD

[0001] The present invention relates to a method, a liquid cleaningcomposition and a device for spot cleaning of a fabric.

BACKGROUND OF THE INVENTION

[0002] In recent years, there has been interest in providing productsfor spot removal of stains on fabrics, particularly garments. This mayfor example be for removal of stains due to food spillage or otherstains which are stained during wear, as well as the localised cleaningof collars and cuffs prior to a main wash. As used herein, in thebroadest sense, “spot cleaning” refers to cleaning of any part of afabric other than the whole item.

[0003] U.S. Pat. No. 5,122,158 discloses a method and device foraccelerating cleaning of soiled parts of clothes by rub coating with anenzyme-containing liquid detergent. An applicator device comprises acontainer closed by a porous body made of a heated and sinteredsynthetic plastics material. This is used to rub the garment to applythe liquid composition.

[0004] WO-A-97/20099 discloses a method of treating a spot or stain on atextile by applying a detergent composition, then placing an absorbentlayer adjacent to one side of the textile fabric in the region of thespot or stain and applying heat, pressure or both to the opposing side.The detergent composition is applied in the form of a liquidcomposition, preferably comprising an organic solvent, optionally alsocontaining a surfactant. The composition is dispensed from a containerclosed by an applicator device such as a porous plug with fabric orbrush texturing, or a roller-ball device.

[0005] WO-A-99/02769 discloses a method for spot cleaning a stain spoton a fabric by wiping with an applicator impregnated with a cleaningsolution comprising water, an alcohol, glycol, glycol-ether or glycerineand from 0.0001-1% by weight of surfactant. The applied solution isallowed to migrate outwardly from the spot and the volatile componentsevaporate. The wiping applicator is preferably stored in an airtightcontainer and is preferably a polymer towelette. The cleaning solutionmay also contain enzyme. This product has a disadvantage of felting ofthe wipe if too much pressure is applied. Further, outward migration ofthe solvent tends to produce a “halo” effect on drying. Moreover, when atowelette is contacted with a stain and the stain is absorbed, ittypically spreads in the same plane as the working surface of thetowelette roughly in an increasing circle and often redeposits on thefabric to be cleaned.

[0006] WO-A-01/04260 discloses a fabric treatment applicator which isconstructed in a form generally analogous to a felt-tipped pen. Asynthetic fibre nib is used to apply a liquid composition contained inthe body of the pen-like device. The liquid composition must contain atleast one bleach and at least one surfactant. The absence of means toabsorb the applied solution means that soil is largely redistributed onthe fabric rather than removed.

[0007] WO-A-01/04407 discloses and claims an applicator for applying aspot-treatment stain removal aqueous solution to a textile fabric. Theliquid composition preferably contains a bleach and the applicationdevice is preferably a nib. The application device must have africtional stress of from 0.05 N mm⁻² to 10 N mm⁻². Again, the absenceof means to absorb the applied solution means that soil is largelyredistributed on the fabric rather than removed.

[0008] Other applicators are simply too hard and may damage delicatefabrics during the cleaning process. Alternatively, applicators may betoo soft and felt during the cleaning process leaving unsightlyresidues. Thus there is a continuing need for a method of spot cleaningfabric which delivers effective spot cleaning, good garment care and/orwithout the need to rinse.

[0009] Furthermore, none of the prior proposals teaches an apparatuswhereby a cleaning composition can be applied to a spot or stain on atextile fabric in optimal manner and then absorbed, together with stainmaterial, using the same device and without the need for a separateabsorbent pad or cloth which is not convenient for cleaning garmentswhilst being worn. Unexpectedly, we have found a method and device forspot cleaning fabric which overcomes one or more of drawbacks mentionedabove.

DEFINITION OF THE INVENTION

[0010] Thus, according to one aspect of the present invention a methodand device for spot cleaning a fabric with a liquid cleaning compositionsuitable for multiple uses is provided, said device comprising more thanone absorbent means for absorbing at least some of the appliedcomposition from the fabric and holding means for storing the more thanone absorbent means.

[0011] According to another aspect of the invention, a method for spotcleaning a fabric with a liquid cleaning composition is providedcomprising the steps of

[0012] a) applying the composition to the fabric

[0013] b) absorbing at least some of the applied liquid cleaningcomposition from the fabric with an absorbent means whereby theabsorbent means is capillary active in a plane different to the workingsurface of the absorbent means.

[0014] According to another aspect of the present invention a device forspot cleaning a fabric with a liquid cleaning composition is provided,the device comprising a reservoir for holding the composition, anapplicator for applying the composition from the reservoir to the fabricand absorbent means for absorbing at least some of the applied liquidcleaning composition from the fabric wherein the absorbent means ispreferably according to the previous aspect of the invention.

[0015] According to yet another aspect of the present invention a methodof spot cleaning a fabric is provided said method comprising applying aliquid cleaning composition to the fabric with an applicator or a deviceaccording to the previous aspect of the present invention, and absorbingat least some of the applied liquid cleaning composition with theabsorbent means of said device.

[0016] According to still another aspect of the invention, a device andmethod for spot cleaning a fabric with a liquid cleaning composition isprovided, said device comprising at least one absorbent means forabsorbing at least some of said composition from the fabric wherein theratio of the working surface and the thickness or height of theabsorbent means is preferably lower than 3000 mm.

[0017] According to still another aspect of the invention, a method andliquid cleaning composition for spot cleaning a fabric with liquidcleaning composition is provided comprising the steps of

[0018] a) applying the composition to the fabric

[0019] wherein the liquid cleaning composition comprises

[0020] from 0.001 to 2 wt. %, preferably from 0.01 to 1.5 wt. %, morepreferably from 0.05 to 0.9 wt. % of a amphoteric or zwitterionicsurfactant;

[0021] from 0.001 to 2 wt. %, preferably from 0.01 to 1.5 wt. %, morepreferably from 0.05 to 0.9 wt. % of a nonionic surfactant;

[0022] from 0 to 2 wt. % preferably from 0.01 to 1.5 wt. %, morepreferably from 0.05 to 0.9 wt. % of an anionic surfactant; and

[0023] b) absorbing the excess liquid cleaning composition with anabsorbent means.

[0024] The method, device and liquid cleaning composition according tothe invention deliver effective spot cleaning by for example effectivelyabsorbing the stain material, reducing the redeposition of the stain onthe fabric to be cleaned, while being safe to delicate fabrics and/orleaving no unwanted residues.

[0025] We may also claim the device of this aspect of the invention inthe form where the reservoir actually contains the liquid cleaningcomposition. These and other aspects of the invention are described inmore detail below.

DETAILED DESCRIPTION OF THE INVENTION

[0026] We have unexpectedly found an improved a method and device forspot cleaning a fabric with a liquid cleaning composition suitable formultiple uses, said device comprising more than one absorbent means forabsorbing at least some of the applied composition from the fabric andholding means for storing the more than one absorbent means.

[0027] The absorbent means must be capable of absorbing the appliedliquid cleaning composition from the fabric, preferably having at leastsome of the stain dissolved or dispersed therein if the stain dissolvesor disperses in the cleaning liquid. With bleachable stains obviouslynone of the stain may be absorbed. In that case it is desirable that theabsorbent means is able to absorb the excess cleaning liquid applied tothe stain. The liquid cleaning composition may be applied in anysuitable way for example with a special applicator. However, it may beconvenient to combine these such that the liquid cleaning composition isapplied from a device for spot cleaning a fabric and said device alsocomprises said absorbing means. The device may also comprise more thanone absorbing means as described below. Usually the absorbent means willcomprise fibres. A fibre can be made of any substance, natural, ormanmade, and has a high length-to-width ratio. Towelettes and wipes mayalso comprise fibres, but these fibres are typically oriented randomlybut in the same plane as the working surface of the towelette or wipe.

[0028] One of the advantages of the absorbent means according to thisaspect of the invention is that it can be used to rub the appliedcleaning liquid on the stain. For some stains, the process for spotcleaning preferably includes rubbing the applied cleaning liquid on thestain with the absorbent means thereby dissolving or otherwise removingthe stain and, more or less at the same time, absorbing at least some ofthe excess liquid and loosened stain material, if any. Thus, the fabricwhich is spot cleaned according to the present invention does not haveexcess cleaning liquid and does not need rinsing. The absorbent meansshould preferably have such a combination of absorbing capacity anddimensions to be able to absorb at least 0.2 ml more preferably, atleast 0.4 ml most preferably at least 0.6 ml of the used cleaningliquid. In contrast to 2 dimensional wipes which can also be describedas a layer, sheet web or laminate, the absorbent means according to thisaspect of the invention is preferably a body, i.e., 3 dimensional objectwith sufficient height to absorb these quantities. This height orthickness will depend on the exact nature of the absorbing means such asthe absorbing capacity of the material used and the way it is processedand structured. Often, the height of the absorbing means is from 1 to 50mm, more preferably from 2 to 30 mm, most preferably from 3 to 20 mm.The body of the absorbent means may have any form suitable for thispurpose. One preferred form is a disc form having a diameter of from 0.5to 5 cm, more preferably from 0.7 to 3 cm most preferably from 0.9 to 2cm. The working surface of the absorbent means may have any suitableform but is preferably flat. It may also be cone shaped or even curvedlike for example when the body has a dome shape.

[0029] According to one aspect of the invention an improved method forspot cleaning a fabric with a liquid cleaning composition is providedcomprising the steps of

[0030] a) applying the composition to the fabric

[0031] b) absorbing at least some of the applied liquid cleaningcomposition from the fabric with an absorbent means whereby theabsorbent means is capillary active in a plane different to the workingsurface of the absorbent means. Preferably said plane is perpendicularto the working surface of the absorbent means as defined below.

[0032] Preferably, the absorbent means comprises a capillary activecontinuous body of fibres which are as a whole longitudinally aligned,and which are, in the aggregate, in a parallel orientation.

[0033] As used herein the terms capillary and capillarity are used torefer to passageways within the absorbent means which are capable ofliquid transport in accordance with the principles of capillaritygenerally represented by the Young/Laplace equation. This equationstates that fluids will rise in a channel or column until the pressuredifferential between the weight of the liquid and the forces pushing itthrough the channel are equal.

Dp=(2g cosq)/r

[0034] In the equation, Dp is the capillary pressure differential acrossthe surface, g is the surface tension of the liquid, q is the contactangle between the liquid and the walls of the channel, and r is theradius of the cylinder.

[0035] Capillary active absorbent means comprising fibres formingcapillary active passageways can be used advantageously by transportingliquid effectively in a short period of time away from the workingsurface and minimise the redeposition of cleaning liquid and any stainmaterial.

[0036] According to one preferred embodiment, the capillary activeabsorbent means comprises of fibres which are oriented parallel to eachother and perpendicular to the working surface of the absorbent means.Just to avoid confusion, the term “perpendicular to the working surface”intended to describe the general orientation of the fibres independentfrom the exact form of the absorbent means as the exact form may differin different embodiments. For this purpose, we start from the absorbentmeans having a cylindrical form whereby the ends are flat. The end ofsuch a cylinder can be used as the working surface. The term“perpendicular to the working surface” is intended to describe that thelongest axis of the fibres or capillary activity makes an angle ofbetween 70 and 110 degrees with the working surface of the absorbentmeans at least at the point of contact with the working surface. It isdesirable that the fibres are continuous over the height or thickness ofthe absorbent means. The uniformity of the continuity or orientation ofthe fibres will depend on various factors such as the exact method ofprocessing the fibres and the absorbent pad. Usually more than 50% ofthe fibres will be continuous respectively oriented parallel to eachother and perpendicular to the working surface of the absorbent means atthe point of contact. The fibres or filaments may also be twistedwhereby the longitudinal axis is preferably still oriented perpendicularto the working surface of the absorbent means. Preferable absorbentmeans comprising twisted yarn fibres and a process for the preparationthereof are for example described in WO 89105235 and U.S. Pat. No.4,729,808. Obviously, it is intended that the invention encompassesembodiments whereby the absorbent means are processed into another formthan a cylinder or disc. The ends of a cylinder may for instance beprocessed to form a dome or a cone shape. Alternatively, starting from acylinder, this cylinder may be transsected under an angle of less than90 degrees with the longitudinal axis. The skilled person may choose anysuitable form starting from the absorbent means as defined above.

[0037] In general, many fibrous materials developed for use as filtersin cigarettes or for use in the ink industry such as ink reservoirs maybe suitable depending on the requirements described. For example, thefibres of the absorbent means may be a filamentary tow as defined inU.S. Pat. No. 3,094,736 forming a continuous body of fibres “randomlyoriented primarily in a longitudinal direction.” The term “randomlyoriented primarily in a longitudinal direction” as used in thisspecification and the appended claims, is intended to describe thecondition of a body of fibres which are as a whole longitudinallyaligned, and which are, in the aggregate, in a parallel orientation, butwhich have short portions running more or less at random in non-paralleldiverging and converging directions.

[0038] Normally, the absorbent means will comprise of continuous fibresor filaments randomly oriented primarily in a longitudinal direction,preferably perpendicular to the working surface as described in U.S.Pat. No. 3,111,702. Alternatively, the absorbent means may be formed ofcoherent sheet of flexible thermoplastic fibrous material composed of aninterconnecting network of randomly arranged, highly dispersed,continuous-filament junctions as described in U.S. Pat. No. 4,729,808.

[0039] Preferable absorbent means include, but are not limited to,absorbent means prepared from Transorb™ material available from AmericanFiltrona Corporation such as Transorb Reservoir R20865. Preferably, thematerial for the fibres may be selected from the group comprisingpolyethylene, polypropylene, polyester, polyolefin cellulose acetatematerial and mixtures thereof.

[0040] According to one aspect of the invention an unexpectedlyeffective method and absorbent means for spot cleaning a fabric with aliquid cleaning composition is provided. We have found that the ratio ofthe working surface and the thickness or height of the absorbent meansis preferably lower than 3000 mm. More preferably, this ratio is from0.01 to 3000 mm, even more preferably from 0.05 to 1000, most preferablyfrom 0.1 to 500 mm. When the working surface is not a single flat plane,the working surface can be defined as the contact area is defined inWO-A-01/04260. If the thickness of the working surface is variable,preferably the maximum thickness should be taken. Thus one preferablemethod for spot cleaning a fabric with a liquid cleaning compositioncomprises

[0041] a) applying the composition to the fabric;

[0042] b) absorbing at least some of the applied liquid cleaningcomposition from the fabric with an absorbent means whereby ratio of theworking surface and the thickness or height of the absorbent means ispreferably lower than 3000 mm. Desirable features of the absorbent meansand method are as described above.

[0043] The absorbent means is preferably part of a device for spotcleaning a fabric. The device may have any form as long as it issuitable for spot cleaning a fabric. Preferably, the device comprisesholding surfaces so it can be used as a hand held device during theprocess of spot cleaning like for example a pen or even an eraser.Preferably, the device also comprises a holding means to hold theabsorbent means. The absorbent means may for example be held in achamber, compartment, recess, on support member or a surface of thedevice by any suitable means. The absorbent means may be glued, simplywedged or held by any other suitable manner in the holding means. Theholding means for the absorbent means is preferably a non detachablepart of the device. The absorbent means will usually be much smallerthan the device. So small that the absorbent means itself may bedifficult to hold when it is rubbed against the stain. One advantageaccording to this aspect of the invention is that the absorbent means isheld in place by the holding means of the device and the user can stilltransfer an effective force to remove the stain by holding the deviceand rubbing the absorbent means, optionally covered by mesh means,against the stain.

[0044] According to another aspect of the present invention a device forspot cleaning a fabric with a liquid cleaning composition is provided,the device comprising a reservoir for holding the composition, anapplicator for applying the composition from the reservoir to the fabricand absorbent means for absorbing at least some of the applied liquidcleaning composition from the fabric wherein the absorbent means ispreferably as described above.

[0045] The body of the device may be in any convenient shape, e.g.elongate, spherical or partly spherical or having any aestheticallyappealing or novelty shape. However, most preferably, the device is inthe form of a member having a first end and a second end, wherein thereservoir is located within or forms at least part of the member. Thus,the first and second ends may be respective ends of a tubular or otherelongate member having any cross-section. It may also have one or morebends or angles therein, e.g. so that one part can act as a handlewhilst the other end is being applied to the fabric.

[0046] In a preferred embodiment, one of the applicator and theabsorbent means is located at the first end of the member and the otheris located at the second end of the member. Alternatively, in anotherpreferred embodiment, both the applicator and the absorbent means arelocated at the same first end or second end of the member. In that case,one of the applicator and the absorbent means may be arranged concentricto the other, and preferably also with at least the adjacent part of thereservoir member, for simplicity of use. The arrangement may also besuch that the applicator has a point or region of exit for thecomposition and the absorbent means surrounds the point or region ofexit.

[0047] In yet another preferred embodiment, a device for spot cleaning afabric with a liquid cleaning composition suitable for multiple uses isprovided, the device comprising more than one absorbent means forabsorbing at least some of the applied liquid cleaning composition fromthe fabric and holding means for holding or storing more than oneabsorbent means.

[0048] Preferably, the device further comprises a reservoir for holdingthe composition, an applicator for applying the composition from thereservoir to the fabric, The holding means may store 2 or anything up to15 absorbent means. The more than one absorbent means can each beconveniently used for separate stains but if desired for one stain.Preferably, the holding means stores the absorbent means in such a waythat at least one absorbent means can be used directly. The form of theholding means will depend on the form of the absorbent means. Forexample, when the absorbent means have the form of discs, the holdingmeans may have the form of a column to hold say 4 to 10 discs stacked oneach other whereby the absorbent disc facing out, can be used directly.The absorbent means may be absorbent on one side but impermeable on theother to prevent cross contamination of other absorbent means when theseare stacked.

[0049] It is desirable that the device also includes discarding means todiscard the used disc and preferably at the same time to position asubsequent unused absorbent means for use. The discarding and/orpositioning means may for example include material with a spring actionin the bottom of the storage means or other systems known to the skilledperson used for lipsticks or deodorant stick dispensers. For example, asystem where by rotating the holding means of the device vis a visanother part of the device, the rotation is translated into an axialmovement of an elevator means located in the holding means, elevating anumber of absorbent means held by the holding means whereby the mostoutward facing absorbent means is discarded and at the same time a freshabsorbent means is exposed and positioned for use. The device may alsocomprise a removable cap to protect the absorbent means in between uses.The reservoir for the cleaning liquid will preferably comprisesufficient cleaning liquid for the multiple uses and will be reclosablefor example with a removable cap. Both the reservoir and holding meansmay be designed to allow refilling by the consumer.

[0050] Preferably, mesh means is also provided for rubbing the fabric sothat the liquid absorbed by the absorbent means from the fabric passesthrough the mesh means. The absorbent member is conveniently held in achamber having an opening covered by a mesh means. Alternatively, theabsorbent means may be mounted on a support member and covered by themesh means. In a coaxial form of such an arrangement, an outlet of theapplicator may pass through the support and absorbent means. The meshcan assist soil removal by rubbing. The loosened soil then passesthrough the mesh to be absorbed by the absorbent means, before it can beredistributed on the fabric. Further, hydrophobic soil such as lipstickcan be removed by adhering directly to the mesh means. If a mesh meansis not present, such hydrophobic soil will be directly absorbed by theabsorbent means and/or adhere to it.

[0051] The mesh means is preferably a mesh of natural or syntheticpolymer e.g. made of polyethylene, polyester or nylon The mesh size isto be understood as the opening or clear space between the wires.Preferably the average mesh size is greater than 200, preferably greaterthan 250, more preferably greater than 300 micrometers. The average meshsize is preferably smaller than 2000, more preferably smaller than 1500and even more preferably smaller than 1000 micrometers. A mesh thicknessof from 50 micrometers to 500 micrometers is typical and is preferablyof from 150 micrometers to 400 micrometers. The wire diameter ispreferably from 50 micrometers to 500 micrometers and is more preferablyfrom 150 micrometers to 400 micrometers. The mesh means may even be acoarsely woven fabric.

[0052] The applicator closes the reservoir but allows the liquidcomposition to flow-out in controlled manner. It may for example,comprise a simple slot or hole of dimensions such that the out-flow ofthe liquid composition is restricted. It can also comprise a nib ofmetal or plastics construction, or a permeable member such as of foam orsintered composition or a fibre member. Optionally, a snap-off, pull-offor cut-off seal or else a cap or plug may be provided for sealing beforefirst use. After opening, a removable cap may be provided for coveringthe applicator before repeat use, so that liquid cannot evaporate orescape.

[0053] To assist removal of the composition from the reservoir, thereservoir may in whole or in part, be formed of a flexible material sothat it may be squeezed. The reservoir may also be provided with aplunger (e.g. rod and piston) arrangement to assist dispensing of theliquid.

[0054] The liquid composition is preferably aqueous, although thepresent invention also extends to compositions wherein a substantiallynon-aqueous liquid composition is applied, e.g. having less than 25% byweight or less, preferably 20% by weight or less, more preferably 15% byweight or less, e.g. 10% by weight or less, most preferably 5% by weightor less of water.

[0055] In the case of the aqueous compositions, it is also preferred tohave at least one organic solvent present, which preferably should bewater-miscible. Preferred organic solvents are selected from alcohols,ketones, esters, glycol ethers and mixtures thereof. If present,preferably the organic solvent content is from 0.1 to 75 % by weight ofthe composition, more preferably from 1 % to 10 % by weight.

[0056] It is also preferred in some embodiments for the composition tocontain a surfactant component comprising one or more surfactantsselected from an ionic, cationic, zwitterionic and amphotericsurfactant. In general, surfactants can be selected from those known inthe art of laundry detergent compositions. When present, the surfactantcomponent is preferably present from 0.00001% to 10%, more preferablyfrom 0.0001% to 1% by weight of the composition. The presence ofsurfactant is beneficial for removing oily stains from hydrophobicfabrics such as polyester. However, the case of oily stains onhydrophilic fabrics such as cotton, it may be preferably to avoidsurfactant, i.e. to have less than 1 wt %, preferably less than 0.1 wt.%, most preferably no surfactant by weight of the liquid cleaningcomposition.

[0057] According to one aspect of the invention surprisingly a effectiveliquid cleaning composition and method for spot cleaning a fabric withsaid liquid cleaning composition is provided, the method comprising thesteps of

[0058] a) applying the composition to the fabric

[0059] wherein the liquid cleaning composition comprises

[0060] i) from 0.001 to 2 wt. %, preferably from 0.01 to 1.5 wt. %, morepreferably from 0.05 to 0.9 wt. % of a amphoteric or zwitterionicsurfactant;

[0061] ii) from 0.001 to 2 wt. %, preferably from 0.01 to 1.5 wt. %,more preferably from 0.05 to 0.9 wt. % of a nonionic surfactant;

[0062] iii) from 0 to 2 wt. % preferably from 0.01 to 1.5 wt. %, morepreferably from 0.05 to 0.9 wt. % of an anionic surfactant; and

[0063] b) absorbing the excess liquid cleaning composition with anabsorbent means.

[0064] Preferably, the liquid cleaning composition comprises anamphoteric surfactant such as a betaine surfactant. It will be obviousthat this aspect of the invention can be combined with the features ofother aspects of the invention such as the absorbent means or device forspot cleaning.

[0065] For effective cleaning, it is advantageous for the viscosity ofthe liquid composition to be preferably from 0.1 mPaS to 1000 mPaS, morepreferably from 10 mPaS to 500 mPaS. If the inherent viscosity of thecomposition is not already within such a range, a thickener e.g. ofpolymeric type may be included. For the avoidance of doubt, in the caseof non-Newtonian liquid compositions (which is preferable), theviscosity is that measured at a shear rate of Optionally, othercomponents may be dissolved or dispersed in the liquid compositions,e.g. selected from detergency builders, bleaches and bleach systems,enzymes, fluorescers and other materials which are conventional inlaundry wash compositions for hand or machine washing. The pH of theliquid cleaning composition is preferably from 3 to 10, more preferablyfrom 5 to 9, most preferably from 6 to 8.

[0066] The amount of liquid cleaning composition in the reservoir meansis sufficient for the number of uses the device is designed for. Forexample 0.1 to 2 ml per single use. Preferably from 0.001 to 10 ml oreven 20 ml, more preferably from 0.1 ml to 5 ml or even 0.1 to 1 ml fora single use. For a device designed for 8 uses a reservoir of 14 mlwould usually be sufficient.

[0067] For the avoidance of doubt, any feature of one aspect of thepresent invention may be utilised in any other aspect of the invention.

[0068] The present invention will now be explained in more detail by wayof the following description of preferred embodiments, and withreference to the accompanying drawings.

DESCRIPTION OF DRAWING

[0069]FIG. 1 shows a cross-section through a first embodiment of adevice according to one aspect of the present invention.

DESCRIPTION OF PREFERRED EMBODIMENTS

[0070] As shown in FIG. 1, there is shown a cross section of a secondembodiment of a spot cleaning device for multiple use according to oneaspect of the present invention in the form of a pen. The total lengthis 151.19 mm and the outer diameter is 23.75 mm.

[0071] The device comprises an elongate member 3 having a first end 5and a second end 7. The elongate member 3 contains applicator 13 and asqueezable reservoir 9 (14 ml) into which is filled a liquid cleaningcomposition 11.

[0072] At the first end 5 of the elongate member 3, is located anapplicator 13 which comprises a frusto-conical extension 15 of theelongate member 3 and integral therewith, narrowing to a restrictedopening 17 with roll-on applicator 31 (Dab-O-Matic® assembly).Applicator 13 may be closed with a removable cap 32.

[0073] At the second end 7 of the elongate member 3, there is a chambermember 21 rotatably connected to reservoir 9. Contained within thechamber 21 is eight absorbent discs 25 of Transorb Reservoir R20865 (exAmerican Filtrona Corporation) within inner sleeve 33. Optionally, eachdisc may be covered by mesh means. The discs inside chamber member 21are held by inner sleeve 33 attached to reservoir 9. The chamber member21 has an open end 27 wherein disc 25 is retained by retaining ring 34When the device is not used a removable cap 36 protects the absorbentdisc 25 facing out. After use, a disc may be discarded by rotatingchamber member 21 vis a vis the reservoir 9 to elevate elevator 35within inner sleeve 33 thereby ejecting an absorbent disc and at thesame time exposing a fresh disc for use. Inner sleeve 33, chamber member21 and elevator 35 are engaged in such a manner that rotation of thechamber member 21 is translated into an axial movement of the elevator.Reservoir 9 and chamber 21 may be refillable.

[0074] The liquid cleaning composition 11 used in the above embodimentsmay have the following formulation:

EXAMPLE 1

[0075] Trade Name Supplier Material Type wt. % Permulen TR 2 BF Goodrichpolymeric emulsified 0.1 Lialet 111-5.5 Condea Augusta nonionicsurfactant 0.2 Admox 12 Albermarle tertiary amine oxide 0.15 Sodiumdioctyl Sigma wetting agent 0.3 sulfosuccinate KOH Baker pH control0.021 (to pH = 7.0) Kathon CG-ICP Rohm & Haas Biocide 0.0003 Waterbalance

EXAMPLE 2

[0076] Trade Name Supplier Material Type wt. Permulen TR2 BF GoodrichPolymeric emulsifier 0.10 Lialet 111-5.5 Condea Augusta Nonionicsurfactant 0.20 Admox 12 Albemarle Tertiary amine oxide 0.15 Sodiumdioctyl Sigma Anionic surfactant/wet 0.30 sulfo succinate Kathon CG-ICPRohm and Haas Biocide 0.0003 KOH to pH 7.0 Water balance

EXAMPLE 3

[0077] Material Chemical Trade Name Supplier Type structure wt. ImbentinAG- Dr Kolb AG Nonionic C<12-14>, 0.47 124S/065 surfactant 6.5 mol EOAmphoteen 24 Akzo Nobel Amphoteric Coco di- 0.13 surfactantmethylbetaine Nansa HS 90 PF Albright & Anionic C10-C14 0.05 Wilsonsurfactant benzene sulphonate, Na salt Kathon CG/ICP Rohm andPreservative Preservative; 0.00075 Haas class of iso- thiazolinonesDisodium EDTA J. T. Baker Buffer, Disodium 0.1 chelating EDTA agent,preservative KOH pH to 7 Water Balance

EXAMPLE 4

[0078] Trade Name Supplier Material Type wt. Permulen TR2 BF GoodrichPolymeric emulsifier 0.10 Lialet 111-5.5 Condea Augusta Nonionicsurfactant 0.20 Admox 12 Albemarle Tertiary amine oxide 0.15 Dynol 604Air Products nonionic surfactant/ 0.30 wet Kathon CG-ICP Rohm and HaasBiocide 0.0003 KOH to pH 7.0 Water Balance

[0079] In an alternative formulation, the amount of Permulen TR2 is 0.1wt. and 0.75 wt. is the amount of Lialet 111-5.

EXAMPLE 5.

[0080] Two drops (about 80 microlitres) of full fat chocolate milk(Chocomel ex Nutricia (NL)) are applied onto an absorbent material. Thesoiled absorber is left for 30 seconds and then pressed against a whitecotton swatch for 1 second (CN1 ex CFT) using a range of pressures. Thereflectance expressed as dE of the cotton swatch was measured before andafter the treatment with the soiled absorber, as well as the diameter ofthe resulting stain and the amount of chocolate milk that wastransferred.

[0081] A. Absorbent means: disc (diameter 13 mm, height 8 mm) ofTransorb Reservoir R20865 ex American Filtrona Corporation. Pres. DropWeight Drop on textile gr/cm{circumflex over ( )}2 Mg mg 800 57 5 500 578 200 81 7 200 52 3 100 70 1

[0082] B. Absorbent means: wipe of non-woven material SVS 49 (ex BFF Nonwovens) Pres. Drop Weight Drop on textile gr/cm{circumflex over ( )}2 Mgmg 200 75 60 200 22 19

[0083] Absorbent means A according to one aspect of the inventionperformed better than comparative absorbent means B. Thus in case B,much more of the stain is relocated from the absorber into the cottonfabric. The transfer of the stain is significantly higher in case B, thestain is heavier and the diameter is larger.

EXAMPLE 6.

[0084] Two drops (about 80 microlitres) of full fat chocolate milk(Chocomel ex Nutricia) are applied onto a glass plate. An absorbentmaterial is contacted with the drop of chocolate milk by pressing itonto the soiled glass plate for 5 seconds (force 20 g/cm2). As a result,the absorber takes up a certain amount of chocolate milk. The soiledabsorber is left for 30 seconds and ten pressed against a white cottonswatch for 1 second (CN1 ex CFT) using a force of 200 g/cm2. Thereflectance of the cotton swatch was measured before and after thetreatment with the soiled absorber, as well as the diameter of theresulting stain and the amount of chocolate milk that was transferred.

[0085] A. Absorbent means: disc (diameter 13 mm, height 8 mm) ofTransorb Reservoir R20865 ex American Filtrona Corporation.

[0086] B. Absorbent means: wipe of non-woven material SVS 49 (ex BFF Nonwovens)

[0087] Absorbent means A according to one aspect of the inventionperformed better than comparative absorbent means B showing lessresoiling. Thus in case of B, much more of the stain was relocated fromthe absorber into the cotton, the stain was heavier and the diameter ofthe stain was larger.

1. A device for spot cleaning a fabric with a liquid cleaningcomposition suitable for multiple uses, said device comprising more thanone absorbent means for absorbing at least some of the appliedcomposition from the fabric and holding means for storing the more thanone absorbent means.
 2. A device according to claim 1, wherein thedevice additionally comprises discarding means to discard the usedabsorbent means.
 3. A device according to claim 1, wherein the deviceadditionally comprises positioning means to position an unused absorbentmeans for the next use.
 4. A device according to claim 1, wherein thedevice additionally comprises removable cap to protect the absorbentmeans in between uses.
 5. A device according to claim 1, wherein thedevice further comprises a reservoir for holding the composition, anapplicator for applying the composition from the reservoir to the fabric6. A device according to claim 5, wherein the wherein the absorbentmeans is capillary active perpendicular to the working surface of theabsorbent means
 7. A device according to claim 5 wherein the absorbentmeans comprises fibres which are oriented parallel to each other andperpendicular to the working surface of the absorbent means.
 8. A deviceaccording to claim 5 in the form of a member having a first end and asecond end, wherein the reservoir is located within or forms at leastpart of the member.
 9. A device according to claim 8, wherein one of theapplicator and the absorbent means is located at one of said first andsecond ends of the member and the other of the applicator and theabsorbent means is located at the other of the first and second ends ofthe member.
 10. A device according to claim 8, wherein both theapplicator and the absorbent means are located at the same first end orsecond end of the member.
 11. A device according to claim 5, whereinmesh means is provided for rubbing the fabric so that liquid absorbed bythe absorbent means from the fabric passes through the mesh means.
 12. Adevice according to claim 5, wherein said applicator comprises a slot orhole of dimensions for restricting the out-flow of the liquidcomposition.
 13. A device according to claim 5, wherein a removable capis provided for covering the applicator when not in use.
 14. A deviceaccording to claim 5, wherein the liquid composition comprises water, atleast one organic solvent and optionally, surfactant.
 15. A method ofspot cleaning a fabric by applying a liquid cleaning composition to thefabric with an applicator of a device according to claim 1 and absorbingat least some of the applied liquid cleaning composition so applied withthe absorbent means of said device.
 16. A method of spot cleaningaccording to claim 15 when dependent upon claim 11, wherein the meshmeans is used to rub the fabric after application of the liquidcomposition.